Mobile fluid storage tank



FIG. 1 is a right side view of the ornamental design of the mobile fluid storage tank of the present invention;

FIG. 2 is a front view of the mobile fluid storage tank of the present invention;

FIG. 3 is a left side view of the mobile fluid storage tank of the present invention;

FIG. 4 is a rear view of the mobile fluid storage tank of the present invention;

FIG. 5 is a top view of the mobile fluid storage tank of the present invention; and,

FIG. 6 is a cross-sectional view taken along line 6—6 of FIG. 1 of the tank liner of the mobile fluid storage tank of the present invention.

Each of the figures include broken lines showing the environment and do not form a part of the design of the claimed invention. 

The ornamental design for a mobile fluid storage tank, as shown and described. 